* Range: 8-12 meters big receivers; mini receiver 6-10 m 
 Performance description and parameters 
 1. Wireless Carrier Frequency: 2402MHz-2480MHz 
 2. Wireless Operating Channels: 16, automatic frequency-hopping 
 3. Rated voltage: 1.5V 
 4. :9-25mA rated current 
 5. Searching system: Optical 
 6. Maximum Acceleration: 14 inches / sec 
 7. Resolution: 500CPI/1600CPI 
 Features 
 1, and 10 meters distance from the wireless freedom of movement; 
 2, non-intelligent connection to the code; 
 3,500 dpi-1000dpi resolution can be adjusted; 
 4, line by line scrolling up and down can be achieved; 
 5, the shortcut keys on the toolbar to achieve the "forward", "back" function (only ZY-710A ZY-730A ZY-320A) 
 6, Power: one or two AA batteries 
 7, power-saving mode: Auto power off 3 Sleep + technology + toggle power switch 
 8, high-performance wear-resistant floor mats, sliding easily accessible